Knowledge Agora

Title	Valorisation of digestate from biowaste through solid-state fermentation to obtain value added bioproducts: A first approach
ID_Doc	29690
Authors	Cerda, A; Mejias, L; Rodríguez, P; Rodríguez, A; Artola, A; Font, X; Gea, T; Sánchez, A
Title	Valorisation of digestate from biowaste through solid-state fermentation to obtain value added bioproducts: A first approach
Year	2019
Published
Abstract	Digestate from biowaste was assessed as a potential source of bioproducts of commercial and industrial interest through solid-state fermentation. The targeted bioproducts were hydrolytic enzymes (cellulases and proteases from autochthonous microbiome), biosurfactants (sophorolipids produced from Starmella bombicola) and bio-pesticides (produced from Bacillus thuringiensis). Low cellulase production was observed within the range of 0.5-1.5 FPU g(-1) DM while protease production showed two discrete peaks of 66 +/- 8 and 65 +/- 3 U g(-1) DM at 3.5 and 48 h, respectively. Low sophorolipids production was also obtained, with a maximum yield of 0.02 g g(-1) DM using hygienised digestate supplemented with external sugar and fat sources. Biopesticides produced by B. thuringiensis were successfully at 72 h of operation, reaching a maximum spore production of 8.15 +/- 0.04 (107) CFU g(-1) DM and 2.85 +/- 0.22 (107) CFU g(-1) DM using sterile and hygienised digestate, respectively. These biopesticides could contribute to the substitution of chemically produced pesticides, moving towards a sustainable digestate management in a circular economy scheme.
PDF	https://ddd.uab.cat/pub/artpub/2019/196258/biotec_a2019m1v271p409.pdf

Similar Articles

ID	Score	Article
29691		Ballardo, C; Barrena, R; Artola, A; Sánchez, A A novel strategy for producing compost with enhanced biopesticide properties through solid-state fermentation of biowaste and inoculation with Bacillus thuringiensis(2017)
9692		Muñoz-Seijas, N; Fernandes, H; Outeiriño, D; Morán-Aguilar, MG; Domínguez, JM; Salgado, JM Potential use of frass from edible insect Tenebrio molitor for proteases production by solid-state fermentation(2024)
12802		Caroca, E; Elorrieta, M; Palma, C; Navia, D; Lebrero, R; Carvajal, A Lignocellulosic residue valorization in a sequential process of solid-state fermentation and solid substrate anaerobic digestion(2022)Journal Of Chemical Technology And Biotechnology, 97.0, 6
7801		Chilakamarry, CR; Sakinah, AMM; Zularisam, AW; Sirohi, R; Khilji, IA; Ahmad, N; Pandey, A Advances in solid-state fermentation for bioconversion of agricultural wastes to value-added products: Opportunities and challenges(2022)
7759		Molina-Peñate, E; Sánchez, A; Artola, A Enzymatic hydrolysis of the organic fraction of municipal solid waste: Optimization and valorization of the solid fraction for Bacillus thuringiensis biopesticide production through solid-state fermentation(2022)
9851		Guimaraes, A; Mota, AC; Pereira, AS; Fernandes, AM; Lopes, M; Belo, I Rice Husk, Brewer's Spent Grain, and Vine Shoot Trimmings as Raw Materials for Sustainable Enzyme Production(2024)Materials, 17.0, 4
23890		Mejias, L; Estrada, M; Barrena, R; Gea, T *A novel two-stage aeration strategy for Bacillus thuringiensis* biopesticide production from biowaste digestate through solid-state fermentation**(2020)
26503		Moreno, JF; Oulego, P; Collado, S; Díaz, M Valorisation of waste activated sludge for protease production by Bacillus licheniformis(2024)
9481		Lappa, IK; Kachrimanidou, V; Papadaki, A; Stamatiou, A; Ladakis, D; Eriotou, E; Kopsahelis, N A Comprehensive Bioprocessing Approach to Foster Cheese Whey Valorization: On-Site β-Galactosidase Secretion for Lactose Hydrolysis and Sequential Bacterial Cellulose Production(2021)Fermentation-Basel, 7.0, 3
9949		Olszewska-Widdrat, A; Xiros, C; Wallenius, A; Schneider, R; Pereira, LPRD; Venus, J Bioprocess optimization for lactic and succinic acid production from a pulp and paper industry side stream(2023)